Question

Two copper spheres of the same radius, one solid and the other hollow, are charged to the same potential. Which will have more charge?

• A. solid sphere
• B. hollow sphere
• C. both will have an equal charge
• D. nothing can be decided

Answer 1

Answer: (C)

both will have an equal charge

We know that the charges reside on the surface of a conductor. Here the two copper spheres are two conductors. So the charge uniformly distributed on the surface on the both sphere. We know that potential at the surface is $V=kq/R.$ As the both spheres have same radius and charged to same potential so they will have equal charge.